Sand pump



' c. UHL

SAND PUMP 2 She s-Sheet 1 c 626 (lb/ INVENTOR WITNESS: ATTORNEY Feb. 28, 1928.

C. UHL

SAND PUMP Filed y 11, 1927 2 Sheets-sheaf '7 INVENTOR 4 4 I I J WITNESS: ATTORNEY Patented Feb. 28, 1928.

PATENT OFFICE.

CLYDE UHL, OF BABTLESVILLE, OKLAHOMA.

SAND PUMP.

Application filed July 11,

My present invention has reference to what is commonly known as a sand pump employed for removing the detritus in well boring, and my object is to simplify and improve the existing art by providing a sand pump whose tubular body has a lower cutting edge, a fixed inwardly opening valve of a particular and peculiar construction above such edge and an upper inwardly opening valve connected with and operated by a jar and movable thereby for stirring up and agitating the sand and the like which is forced by the movement of such valve into the pump.

A further object is the provision of a sand pump that is constructed of tubular sections having novel means for connecting such sections and in which an outwardly opening traveling valve is connected .to a jar whose movement, in both directions is limited and a traveling valve influences an upwardly opening but stationary lower valve of a particular and peculiar construction and which lower valve is disposed di' rectly above the pointed or sharpened end of the tubular casing of the pump.

The invention will be best understood from a consideration of the following details of description taken in connection with the accompanying drawings and specification, with the understanding, however, the invention is not confined to the strict conformity of the showing of the drawings so that such changes and modifications may be made therefrom as to offer no material departure from the salient features of our invention as expressed in the appended claims.

In the drawings:

Figure 1 is an approximately longitudinal sectional view through a sand pump in accordance with this invention.

Figure 2 is an elevation of the upper portion of the pump.

Figure 3 is a similar view taken at right angles to the showing in Figure 2.

Figure 4 is a perspective view of the lower tubular member of the pump provided with a chisel edge.

Figure 5 is a side elevation of the joint between the tubular sections of the pump.

Figure 6 is an enlarged sectional view approximately on the line 66 of Figure 1.

Figure 7 is a similar sectional view approximately on the line 7-7 of Figure 1.

1927. Serial No. 204,986.

Figure 8 is a detail sectional view throu h the pump in a line with the upper or wor ing valves.

Figure 9 is a sectional view approximately on the line 9--9 of Figure 5.

Figure 10 is" a sectional view approximately on the line 1010 of Figure 5. The upper tubular member of the pump 1s indicated in the drawings by the numeral 1. This member, at its upper end, has fixed thereon the arms of a yoke 2. The connecting element of the yoke passes transversely through an elongated slot 3 in a jar 4. The jar may haveserewed thereon a stem 5 or may have connected thereto a sand line 6. The ar, at the portion thereof below the slot 3, is provided with a reduced extension that merges into lateral ears 7, and passing through and held from movement on both of these cars 7 there is a rod 8. The rod 8 is guided through inwardly directed lugs 9 on the inner face of the tube 1.

The lower member of the tubular body of the pump is indicated by the numeral 10. This member may have its lower edge out at an angle as disclosed by Figure 1 of the drawings and indicated by the numeral 11 or the said member may have a chisel shaped edge 12 as disclosed by Figure 4 of the drawings. The chisel edge has its side formed with an opening that communicates with the tubular section 10.

The tubular member 10, at its upper end, is provided with right angularly arranged L-shaped or bayonet slots. the longitudinal passages of which are indicated by the numeral 13, and the lateral passages by the numerals 14. The upper tubular member 1 has a reduced extended portion at its lower end that is received through the upper end of the member 10. This reduced portion is formed with right angularly disposed lugs 15 that are designed to be received through the L-shaped or bayonet slots 13. When the members are turned on each other to bring the lugs 15 on the lateral portions 14 of the L-shaped slots the members 1 and 10 are connected. To secure the members so connected the member 1 has pivotally secured thereto, as at 16, plates or bars 17 that are designed to be received in the passages 13 of the L-shaped slots, these slots or bars 17 being influenced to such position through the medium of springs 18.

In the lower section of the tubular body of the pump, above the lower ends thereof are right angularly arranged elements 20 to which the segmental sections 21 that comprise the lower or standing valve, are hinged. As shown by Figure 7 of the drawings the valve members 21 are in the nature of flat quadrants and are, of course, constructed of metal.

The rods 8 have their lower portions passed through notches in the outer and rounded edge of the upwardly opening slidable or traveling valve of the improvement. As best shown by Figure 6 of the drawings, the valve comprises two flat semi-circular plates 24, and these plates at the sides of the mentioned notches therein have upstanding flanges 23 to which the respective rods 8 are pivoted. In a line with the inner walls of the notches the valve plates 24 have depending flanges 25. These flanges 25 are in the nature of stop elements as they contact with the rods and hold the valve plates horizontal, when the travelling valve is closed.

The use and operation of sand pumps of the type herein set forth is well known to those skilled in the art to which such inventions relate. With my improvements the jar is subjected to vertical reciprocation. The working or travelling valve works up and down with the jars and opens and closes with the strokes so as to keep the muck and sand ofi' of the standing valve. lVith the down stroke both the travelling and the standing valves open and with the upward stroke both valves close. The angle edge 11 of the pump body is employed for stirring up loose material while the chisel edge 12 is employed for cutting into comparatively hard material. The movement of the jar is limited by the contact of the bail therewith and by the contact of the jar with the upper end of the tube or by the contact of the inner wall provided by the opening 3 with the bail 2. The sections constituting the tubular body of the pump may be readily connected or disassoclated. The spring infiuenced locking bars or members 17 hold the lgs 15 in the lateral passages 14 of the L shaped slots so that liability of the disassociation of the tube section is thus effectively prevented.

Having described the invention, I claim 1. In a sand pump, a tubular body made up of sections, having their ends received one in the other, one of said sections having L-shaped slots, lugs on the other sections to be received in said slots, pivotally supported spring influenced locking bars carried by one of the sections and movable into the elongated passages of the slots in the other sections for holding the lugs in the lateral passages of said slots, the lower section of the body having a cutting edge, an upwardly movable valve hinged in the body above said edge, a jar, rods on the jar received and guided in the tube, and an upwardly opening valve hinged to the rods, in combination with means for limiting the sliding movement of the jar.

2. In a sand pump, a tube having a lower cutting edge, a ring fixed in the tube above said edge, a valve hingedly secured on the ring and comprising quadrangular plates, a yoke havin its arms fixed on the upper end of the tu e, a jar having an elongated slot receiving the yoke therethrough, rods secured on the jar and extending into the tube, lu s in the tube through which the rods are guided, a valve hinged on the rod and said valve comprising two segmental plates.

3. In a sand pump, a tube having a lower cutting edge, a ring fixed in the tube above said edge, a valve hingedly secured on the ring and comprising quadrangular plates, a yoke having its arms fixed on the upper end of the tube, a jar having an elongated slot receiving the yoke therethrough, rods secured on the jar and extending into the tube, lugs in the tube through which the rods are guided, a valve comprising two segmental plates which are peripherally notched to receive the rods therethrough, upstanding flanges on the valve plates to which the rods arepivoted and depending stop elements on said valve plates to contact with the rods and hold the valve plates in parallelism when the valve is closed.

In testimony whereof I afiix my signature.

CLYDE UHL. 

